Every Hyacinth color has it meaning, it represents all my thoughts for you. 

Purple Hyacinth, deeply regret, hoping for you to forgive my mistakes, for hurting you. I send those flowers to you when i feel down, when i miss you so much.

Yellow Hyacinth, jealous, i was jealous when i see you with other guys, i want you to know. I am possessive, i only want you to look at me 

White Hyacinth, hope, praying for hope, praying you will look at me again, praying that you will come back to me again. The purity of the color reminds me of you. 

Blue Hyacinth, sincerity, i love you more than anything.